Hertel 74147380 Cobalt Drill Bit 1/2 Inch 118 Degree

Product Description

The HERTEL 74147380 is a reduced shank cobalt drill bit designed for drilling into tough, high tensile strength materials where standard high-speed steel bits fall short. Built from cobalt tool steel with an oxide straw finish, this bit delivers the heat resistance and edge retention needed for demanding applications. It carries a 118-degree standard point angle and a right-hand cutting direction, making it compatible with conventional drill press and handheld drill setups. At 6 inches overall length with a 3-inch flute length, it provides adequate chip clearance for deep hole entry in metal fabrication and maintenance work.

This bit is suited for machinists, maintenance technicians, and fabricators working with stainless steel, alloy steels, and other tough high tensile strength materials. The straight-cylindrical 1/2-inch shank seats securely in standard drill chucks without requiring a tapered spindle adapter. It is a practical choice for job-site drilling, machine shop work, and field maintenance applications where material hardness demands a cobalt-grade cutting tool.

Key Features

• Cobalt tool steel construction for high heat resistance and extended tool life in hard materials
• 118-degree standard point angle for accurate starting and general-purpose drilling
• Oxide straw finish reduces friction and helps resist corrosion
• Straight-cylindrical 1/2-inch shank fits standard 1/2-inch drill chucks directly
• Right-hand spiral fluting promotes efficient chip evacuation during drilling
• 3-inch flute length supports a maximum drilling depth of 3 inches

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for applications requiring a 1/2-inch cobalt reduced shank bit with a 118-degree standard point, suitable for use in standard 1/2-inch keyed or keyless drill chucks on drill presses and handheld drills.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with metalworking drill procedures. Secure the shank fully in the chuck and verify it is tightened before operation. Always wear appropriate PPE including eye protection when drilling metal. Follow applicable shop safety standards and equipment manufacturer guidelines for speed and feed settings appropriate to the workpiece material.